SB2025072864 - Ubuntu live patch for Linux kernel
Published: July 28, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2024-57850)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the jffs2_rtime_decompress() function in fs/jffs2/compr_rtime.c. A local user can escalate privileges on the system.
2) Out-of-bounds read (CVE-ID: CVE-2024-56608)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the dcn21_link_encoder_create() function in drivers/gpu/drm/amd/display/dc/resource/dcn21/dcn21_resource.c. A local user can perform a denial of service (DoS) attack.
3) Out-of-bounds read (CVE-ID: CVE-2024-56596)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the jfs_readdir() function in fs/jfs/jfs_dtree.c. A local user can perform a denial of service (DoS) attack.
4) Use-after-free (CVE-ID: CVE-2024-56551)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the amdgpu_vce_sw_fini() function in drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c, within the amdgpu_device_fini_sw() function in drivers/gpu/drm/amd/amdgpu/amdgpu_device.c. A local user can escalate privileges on the system.
5) Use-after-free (CVE-ID: CVE-2024-53171)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the get_znodes_to_commit() function in fs/ubifs/tnc_commit.c. A local user can escalate privileges on the system.
6) Improper locking (CVE-ID: CVE-2024-50047)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the SMB2_negotiate() function in fs/smb/client/smb2pdu.c, within the smb2_get_enc_key(), crypt_message(), smb3_init_transform_rq() and decrypt_raw_data() functions in fs/smb/client/smb2ops.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.